dc.contributor.author |
Rao, C N R
|
|
dc.contributor.author |
Govindaraj, A
|
|
dc.contributor.author |
Aiyer, Hemantkumar N
|
|
dc.contributor.author |
Seshadri, Ram
|
|
dc.date.accessioned |
2012-11-07T09:18:29Z |
|
dc.date.available |
2012-11-07T09:18:29Z |
|
dc.date.issued |
1995-11-16 |
|
dc.identifier |
0022-3654 |
en_US |
dc.identifier.citation |
Journal of Physical Chemistry 99(46), 16814-16816 (1995) |
en_US |
dc.identifier.uri |
https://libjncir.jncasr.ac.in/xmlui/10572/936 |
|
dc.description |
Letter. Restricted Access. |
en_US |
dc.description.abstract |
Scanning tunneling microscopy of solid films of C-60 and C-70 clearly demonstrate the occurrence of photochemical polymerization of these fullerenes in the solid state. X-ray diffraction studies show that such a polymerization is accompanied by contraction of the unit-cell volume in the case of C-60 and expansion in the case of C-70. This is also evidenced from the STM images. These observations help to understand the differences in the amorphization behavior of C-60 and C-70 under pressure. Amorphization of C-60 under pressure is irreversible because it is accompanied by polymerization associated with a contraction of the unit cell volume. Monte Carlo simulations show how pressure-induced polymerization is favored in C-60 because of proper orientation as well as the required proximity of the molecules. Amorphization of C-70, on the other hand, is reversible because C-70 is less compressible and polymerization is not favored under pressure. |
en_US |
dc.description.uri |
http://dx.doi.org/10.1021/j100046a003 |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
American Chemical Society |
en_US |
dc.rights |
© 1995 American Chemical Society |
en_US |
dc.subject |
Solid C-60 |
en_US |
dc.subject |
Transition |
en_US |
dc.subject |
Reduction |
en_US |
dc.subject |
Films |
en_US |
dc.subject |
Phase |
en_US |
dc.subject |
C60 |
en_US |
dc.title |
Polymerization and Pressure-Induced Amorphization of C60 and C70 |
en_US |
dc.type |
Article |
en_US |